10 Best Green Cars

Topping the list of greenest vehicles is the Mitsubishi i-MiEV (pictured at top), which has the highest MPGe (Miles Per Gallon equivalent) of 112 (126 city and 99 highway) and an energy impact score of 0.3 barrels of fuel per year. The MiEV is also the cheapest to operate at $0.90 every 25 miles.